Which of the following revolutionized american communications in the late 1800s? a. steam engines and steamships
b. the telegraph and telephone
c. a workable light filament
d. refrigeration and sewing machines

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explanation:

powers  are  denied  to the  national governmentin three distinct ways: some  powers, such as the  power  to levy duties on exports or prohibit the freedom of religion, speech, press, or assembly, are expressly  denied  to the  national government  in the  constitution.